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82871394423 = 327623798141
BaseRepresentation
bin100110100101110000…
…1010010000001110111
321220220110011000122120
41031023201102001313
52324210034110143
6102023125331023
75662426141626
oct1151341220167
9256813130576
1082871394423
1132166818224
1214089566a73
137a78c9b47c
1440222656bd
15225060c383
hex134b852077

82871394423 has 4 divisors (see below), whose sum is σ = 110495192568. Its totient is φ = 55247596280.

The previous prime is 82871394367. The next prime is 82871394451. The reversal of 82871394423 is 32449317828.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82871394423 - 217 = 82871263351 is a prime.

It is a super-2 number, since 2×828713944232 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82861394423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13811899068 + ... + 13811899073.

It is an arithmetic number, because the mean of its divisors is an integer number (27623798142).

Almost surely, 282871394423 is an apocalyptic number.

82871394423 is a deficient number, since it is larger than the sum of its proper divisors (27623798145).

82871394423 is a wasteful number, since it uses less digits than its factorization.

82871394423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27623798144.

The product of its digits is 2322432, while the sum is 51.

The spelling of 82871394423 in words is "eighty-two billion, eight hundred seventy-one million, three hundred ninety-four thousand, four hundred twenty-three".

Divisors: 1 3 27623798141 82871394423